The Lions officially ruled running back Kerryon Johnson and receiver Marvin Jones out for Thursday's game with the Bears because of knee injuries.

Johnson injured his knee in the third quarter of last week's win over the Carolina Panthers and is expected to miss multiple games.

With Johnson out, the Lions will use a combination of LeGarrette Blount, Theo Riddick and Zach Zenner at running back. That trio is averaging a combined 2.6 yards per carry. Johnson, who ranks third among all rookies with 641 yards rushing, is averaging more than twice as much (5.4 ypc).

The Lions used a combination of Kenny Golladay, TJ Jones, Bruce Ellington and Andy Jones at receiver against the Panthers. Ellington signed as a free agent earlier this month, Andy Jones signed off the practice squad last week, and TJ Jones only has seven catches on the season.

"The more experience playing together they can have and I can have with them, the better," Lions quarterback Matthew Stafford said. "I think whatever it’s been, 14 days or so, isn’t a whole lot time in the bank, but we’ll take what we can get."